test/mempool: fix autotest retry

Single producer / single consumer mempool handle is stored in static
variable and the mempool allocated if stored value is NULL.
If the mempool is freed, NULL should be restored to make sure that
the mempool is allocated once again next time when the test is run.

Fixes: 8ef772aee072 ("app/test: rework mempool test")
Cc: stable@dpdk.org
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>

diff --git a/test/test/test_mempool.c b/test/test/test_mempool.c
index 8d29af2..eebb1f2 100644 (file)
--- a/test/test/test_mempool.c
+++ b/test/test/test_mempool.c
@@ -327,17 +327,17 @@ test_mempool_sp_sc(void)
        }
        if (rte_mempool_lookup("test_mempool_sp_sc") != mp_spsc) {
                printf("Cannot lookup mempool from its name\n");
-               rte_mempool_free(mp_spsc);
-               RET_ERR();
+               ret = -1;
+               goto err;
        }
        lcore_next = rte_get_next_lcore(lcore_id, 0, 1);
        if (lcore_next >= RTE_MAX_LCORE) {
-               rte_mempool_free(mp_spsc);
-               RET_ERR();
+               ret = -1;
+               goto err;
        }
        if (rte_eal_lcore_role(lcore_next) != ROLE_RTE) {
-               rte_mempool_free(mp_spsc);
-               RET_ERR();
+               ret = -1;
+               goto err;
        }
        rte_spinlock_init(&scsp_spinlock);
        memset(scsp_obj_table, 0, sizeof(scsp_obj_table));
@@ -348,7 +348,10 @@ test_mempool_sp_sc(void)
 
        if (rte_eal_wait_lcore(lcore_next) < 0)
                ret = -1;
+
+err:
        rte_mempool_free(mp_spsc);
+       mp_spsc = NULL;
 
        return ret;
 }